Finding the Fourth Proportional to 122,668,152.44, 169,283,131.49 and 66,913,820.55
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Solution
The fourth proportional to 122,668,152.44, 169,283,131.49 and 66,913,820.55 is: 92,341,662.10
Step by Step Solution
- Step 1: Write the proportion equation
122,668,152.44 : 169,283,131.49 = 66,913,820.55 : x - Step 2: Convert to fraction form
122,668,152.44/169,283,131.49 = 66,913,820.55/x - Step 3: Cross multiply
122,668,152.44x = 169,283,131.49 × 66,913,820.55 - Step 4: Simplify right side
122,668,152.44x = 11,327,381,082,831,198 - Step 5: Solve for x
x = 11,327,381,082,831,198/122,668,152.44 - Step 6: Final answer
x = 92,341,662.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.